Exercises for Abdominals (and Core) | MIT Medical
The plank exercise is a great way to build endurance in both the abs and back, as well as stabilizer muscles. To do it right: 1. Lie face down on mat resting on ...
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The plank exercise is a great way to build endurance in both the abs and back, as well as stabilizer muscles. To do it right: 1. Lie face down on mat resting on ...
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